Diagonalizing Quadratic Bosonic Operators by Non-Autonomous Flow Equations

Diagonalizing Quadratic Bosonic Operators by Non-Autonomous Flow Equations
Author :
Publisher : American Mathematical Soc.
Total Pages : 134
Release :
ISBN-10 : 9781470417055
ISBN-13 : 1470417057
Rating : 4/5 (057 Downloads)

Book Synopsis Diagonalizing Quadratic Bosonic Operators by Non-Autonomous Flow Equations by : Volker Bach

Download or read book Diagonalizing Quadratic Bosonic Operators by Non-Autonomous Flow Equations written by Volker Bach and published by American Mathematical Soc.. This book was released on 2016-03-10 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors study a non-autonomous, non-linear evolution equation on the space of operators on a complex Hilbert space. They specify assumptions that ensure the global existence of its solutions and allow them to derive its asymptotics at temporal infinity. They demonstrate that these assumptions are optimal in a suitable sense and more general than those used before. The evolution equation derives from the Brocket-Wegner flow that was proposed to diagonalize matrices and operators by a strongly continuous unitary flow. In fact, the solution of the non-linear flow equation leads to a diagonalization of Hamiltonian operators in boson quantum field theory which are quadratic in the field.


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